MCF5272 Datasheet, PDF (20/544 Pages) Motorola, Inc – MCF5272 ColdFire Integrated Microprocessor Users Manual

Table of Contents (Continued)
Paragraph
Number
Title
Page
Number
Chapter 12
Universal Serial Bus (USB)
12.1 Introduction ................................................................................................................................ 12-1
12.2 Module Operation ...................................................................................................................... 12-2
12.2.1 USB Module Architecture .............................................................................................. 12-2
12.2.1.1 USB Transceiver Interface ................................................................................ 12-3
12.2.1.2 Clock Generator ................................................................................................ 12-4
12.2.1.3 USB Control Logic ........................................................................................... 12-4
12.2.1.4 Endpoint Controllers ......................................................................................... 12-5
12.2.1.5 USB Request Processor .................................................................................... 12-5
12.3 Register Description and Programming Model ......................................................................... 12-7
12.3.1 USB Memory Map ......................................................................................................... 12-7
12.3.2 Register Descriptions ...................................................................................................... 12-9
12.3.2.1 USB Frame Number Register (FNR) ............................................................... 12-9
12.3.2.2 USB Frame Number Match Register (FNMR) ................................................. 12-9
12.3.2.3 USB Real-Time Frame Monitor Register (RFMR) ........................................ 12-10
12.3.2.4 USB Real-Time Frame Monitor Match Register (RFMMR) ......................... 12-11
12.3.2.5 USB Function Address Register (FAR) .......................................................... 12-11
12.3.2.6 USB Alternate Settings Register (ASR) ......................................................... 12-12
12.3.2.7 USB Device Request Data 1 and 2 Registers (DRR1/ 2) ............................... 12-13
12.3.2.8 USB Specification Number Register (SPECR) .............................................. 12-14
12.3.2.9 USB Endpoint 0 Status Register (EP0SR) ...................................................... 12-14
12.3.2.10 USB Endpoint 0 IN Configuration Register (IEP0CFG) ............................. 12-15
12.3.2.11 USB Endpoint 0 OUT Configuration Register (OEP0CFG) ........................ 12-16
12.3.2.12 USB Endpoint 1–7 Configuration Register (EPnCFG) ................................ 12-16
12.3.2.13 USB Endpoint 0 Control Register (EP0CTL) .............................................. 12-17
12.3.2.14 USB Endpoint 1–7 Control Register (EPnCTL) .......................................... 12-20
12.3.2.15 USB Endpoint 0 Interrupt Mask (EP0IMR) and General/Endpoint 0 Interrupt
Registers (EP0ISR) .......................................................................................................... 12-22
12.3.2.16 USB Endpoints 1–7 Status / Interrupt Registers (EPnISR) .......................... 12-25
12.3.2.17 USB Endpoint 1–7 Interrupt Mask Registers (EPnIMR) ............................. 12-26
12.3.2.18 USB Endpoint 0–7 Data Registers (EPnDR) ................................................ 12-27
12.3.2.19 USB Endpoint 0–7 Data Present Registers (EPnDPR) ................................. 12-28
12.3.3 Configuration RAM ...................................................................................................... 12-28
12.3.3.1 Configuration RAM Content .......................................................................... 12-28
12.3.3.2 USB Device Configuration Example .............................................................. 12-29
12.3.4 USB Module Access Times .......................................................................................... 12-30
12.3.4.1 Registers ......................................................................................................... 12-30
12.3.4.2 Endpoint FIFOs .............................................................................................. 12-30
12.3.4.3 Configuration RAM ........................................................................................ 12-30
MCF5272 ColdFire^® Integrated Microprocessor User’s Manual, Rev. 3
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Freescale Semiconductor